31216731

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{3943}}^1$

素因数の和:3995

約数の個数: 32

約数和(自身を含む): 53007360

約数和(自身を除く): 21790629

約数列:

[1, 3, 7, 13, 21, 29, 39, 87, 91, 203, 273, 377, 609, 1131, 2639, 3943, 7917, 11829, 27601, 51259, 82803, 114347, 153777, 343041, 358813, 800429, 1076439, 1486511, 2401287, 4459533, 10405577, 31216731]

約数ペア:

[(1, 31216731), (3, 10405577), (7, 4459533), (13, 2401287), (21, 1486511), (29, 1076439), (39, 800429), (87, 358813), (91, 343041), (203, 153777), (273, 114347), (377, 82803), (609, 51259), (1131, 27601), (2639, 11829), (3943, 7917)]